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dm: tegra: usb: Convert to livetree

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Update the Tegra EHCI driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Simon Glass 2017-07-25 08:30:04 -06:00
parent 56f5c40ad9
commit 5ae28c0a60
1 changed files with 14 additions and 20 deletions
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34
drivers/usb/host/ehci-tegra.c
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@ -17,7 +17,6 @@
#include <usb.h>
#include <usb/ulpi.h>
#include <libfdt.h>
#include <fdtdec.h>
#include "ehci.h"
@ -695,12 +694,11 @@ static void config_clock(const u32 timing[])
static int fdt_decode_usb(struct udevice *dev, struct fdt_usb *config)
{
const void *blob = gd->fdt_blob;
int node = dev_of_offset(dev);
const char *phy, *mode;
config->reg = (struct usb_ctlr *)devfdt_get_addr(dev);
mode = fdt_getprop(blob, node, "dr_mode", NULL);
config->reg = (struct usb_ctlr *)dev_read_addr(dev);
debug("reg=%p\n", config->reg);
mode = dev_read_string(dev, "dr_mode");
if (mode) {
if (0 == strcmp(mode, "host"))
config->dr_mode = DR_MODE_HOST;
@ -717,28 +715,24 @@ static int fdt_decode_usb(struct udevice *dev, struct fdt_usb *config)
config->dr_mode = DR_MODE_HOST;
}
phy = fdt_getprop(blob, node, "phy_type", NULL);
phy = dev_read_string(dev, "phy_type");
config->utmi = phy && 0 == strcmp("utmi", phy);
config->ulpi = phy && 0 == strcmp("ulpi", phy);
config->enabled = fdtdec_get_is_enabled(blob, node);
config->has_legacy_mode = fdtdec_get_bool(blob, node,
"nvidia,has-legacy-mode");
config->has_legacy_mode = dev_read_bool(dev, "nvidia,has-legacy-mode");
config->periph_id = clock_decode_periph_id(dev);
if (config->periph_id == PERIPH_ID_NONE) {
debug("%s: Missing/invalid peripheral ID\n", __func__);
return -EINVAL;
}
gpio_request_by_name_nodev(offset_to_ofnode(node), "nvidia,vbus-gpio",
0, &config->vbus_gpio, GPIOD_IS_OUT);
gpio_request_by_name_nodev(offset_to_ofnode(node),
"nvidia,phy-reset-gpio", 0,
&config->phy_reset_gpio, GPIOD_IS_OUT);
debug("enabled=%d, legacy_mode=%d, utmi=%d, ulpi=%d, periph_id=%d, "
"vbus=%d, phy_reset=%d, dr_mode=%d\n",
config->enabled, config->has_legacy_mode, config->utmi,
config->ulpi, config->periph_id,
gpio_get_number(&config->vbus_gpio),
gpio_get_number(&config->phy_reset_gpio), config->dr_mode);
gpio_request_by_name(dev, "nvidia,vbus-gpio", 0, &config->vbus_gpio,
GPIOD_IS_OUT);
gpio_request_by_name(dev, "nvidia,phy-reset-gpio", 0,
&config->phy_reset_gpio, GPIOD_IS_OUT);
debug("legacy_mode=%d, utmi=%d, ulpi=%d, periph_id=%d, vbus=%d, phy_reset=%d, dr_mode=%d, reg=%p\n",
config->has_legacy_mode, config->utmi, config->ulpi,
config->periph_id, gpio_get_number(&config->vbus_gpio),
gpio_get_number(&config->phy_reset_gpio), config->dr_mode,
config->reg);
return 0;
}